http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2505552-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efbfdc7316d3b1b7ceaee5366a61b6e0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G61-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F4-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F36-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F4-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F36-04 |
| filingDate | 2009-06-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c3d04c92b63ddda6c779a4de2ab9faf7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31cd0295d9ca3efd7c7cf6dd8d85f7db |
| publicationDate | 2014-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2505552-C2 |
| titleOfInvention | Catalysts for producing cis-1,4-polydienes |
| abstract | FIELD: chemistry. n SUBSTANCE: catalyst composition for polymerisation of conjugated dienes contains: (a) a metal-containing compound, wherein said metal is selected from a group consisting of transition metals and lanthanides; (b) N-heterocyclic carbene; (c) an alkylating agent; and optionally (d) a halogen-containing compound which includes one or more active halogen atoms, provided that the halogen-containing compound is present if neither the metal-containing compound nor the alkylating agent does not contain an active halogen atom. Said carbene includes N-heteocyclic carbene of formula or , where R 1 and R 2 are selected from a group consisting of C 1 -C 12 alkyl, C 2 -C 12 alkenyl, C 2 -C 12 alkynyl, phenyl, alkyl-substituted phenyl and mixtures thereof, and all can be identical or all can be selected separately but cannot be H; R 3 and R 4 are selected from a group consisting of H, C 1 -C 12 alkyl, C 2 -C 12 alkenyl, C 2 -C 12 alkynyl, phenyl, alkyl-substituted phenyl, and mixtures thereof and all can be identical or all can be selected separately. Also disclosed is a method of producing polydienes, which involves reacting a conjugated diene in the presence of a polymerisation catalyst composition. n EFFECT: obtaining high-molecular weight cis-1,4-polydienes with high content of cis-1,4 groups. n 15 cl, 1 tbl, 6 ex |
| priorityDate | 2008-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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